/Engine/Plugins/Media/MediaPlate/Source/MediaPlate/Public/MediaPlateModule.h
Call this to get the media player from a media plate object.
[UMediaPlayer](API\Runtime\MediaAssets\UMediaPlayer) * GetMediaPlayer ( [UObject](API\Runtime\CoreUObject\UObject\UObject) * Object, [UObject](API\Runtime\CoreUObject\UObject\UObject) *& PlayerProxy )